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vuln-cve/data/2026/42xxx/CVE-2026-42077.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42077",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-23T19:17:30.565Z",
"datePublished": "2026-05-04T16:50:15.167Z",
"dateUpdated": "2026-05-06T13:40:54.808Z"
},
"containers": {
"cna": {
"title": "Evolver: Prototype Pollution via `Object.assign()` in mailbox store operations",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1321",
"lang": "en",
"description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4"
},
{
"name": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3"
}
],
"affected": [
{
"vendor": "EvoMap",
"product": "evolver",
"versions": [
{
"version": "< 1.69.3",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-04T16:50:15.167Z"
},
"descriptions": [
{
"lang": "en",
"value": "Evolver is a GEP-powered self-evolving engine for AI agents. Prior to version 1.69.3, a prototype pollution vulnerability in the mailbox store module allows attackers to modify the behavior of all JavaScript objects by injecting malicious properties into Object.prototype. The vulnerability exists in the _applyUpdate() and _updateRecord() functions which use Object.assign() to merge user-controlled data without filtering dangerous keys like __proto__, constructor, or prototype. This issue has been patched in version 1.69.3."
}
],
"source": {
"advisory": "GHSA-2cjr-5v3h-v2w4",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-06T13:40:45.787015Z",
"id": "CVE-2026-42077",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-05-06T13:40:54.808Z"
}
}
]
}
}